Transparent pane assembly with integrated antenna system

Patent metadata

Field	Value
Publication number	US-10522904-B2
Application number	US-201815975246-A
Country	US
Kind code	B2
Filing date	May 9, 2018
Priority date	May 9, 2018
Publication date	Dec 31, 2019
Grant date	Dec 31, 2019

Abstract

A transparent pane assembly including a transparent pane, an antenna and an electromagnetic connector assembly. The transparent pane includes first and second layers made of a dielectric substrate, and the second layer includes opposite first and second faces. The antenna is disposed between the first and second layers, and is attached to the first face. The electromagnetic connector assembly includes a metal bonding pad, a coaxial connector, and a printed circuit board. The bonding pad is adhered to the second face and aligned to a feed portion of the antenna for electromagnetic coupling. The circuit board includes opposite first and second sides and an electrically conductive trace carried by the second side. The coaxial connector is electrically connected to the PCB at the second side, and the electrically conductive trace is in electrical contact with the metal bonding pad.

First claim

What is claimed is:

1. A transparent pane assembly comprising:
a transparent pane including first and second layers made of a dielectric substrate, and the second layer including opposite first and second faces;
an antenna disposed between the first and second layers, and attached to the first face, the antenna including a feed portion; and
an electromagnetic connector assembly including a metal bonding pad adhered to the second face and aligned to the feed portion for electromagnetic coupling, a coaxial connector, and a printed circuit board (PCB), the PCB including opposite first and second sides and an electrically conductive trace carried by the second side, wherein the coaxial connector is electrically connected to the PCB at the second side and the electrically conductive trace is in electrical contact with the metal bonding pad.

2. The transparent pane assembly set forth in claim 1 , wherein the feed portion, the metal bonding pad, and the electrically conductive trace are coplanar.

3. The transparent pane assembly set forth in claim 2 , wherein the feed portion, the metal bonding pad, and the electrically conductive trace include matching footprints.

4. The transparent pane assembly set forth in claim 3 , wherein the feed portion, the metal bonding pad, and the electrically conductive trace each include a U-shaped element and a central element spaced from the U-shaped element.

5. The transparent pane assembly set forth in claim 4 , wherein the U-shaped element is a ground plane and the central element is a transmitting element.

6. The transparent pane assembly set forth in claim 2 , wherein the electromagnetic connector assembly includes an adhesive adapted to attach the second face to the second side.

7. The transparent pane assembly set forth in claim 6 , wherein the adhesive is located between the electrically conductive trace and the metal bonding pad.

8. The transparent pane assembly set forth in claim 1 , wherein the PCB includes a plurality of vias adapted to electrically connect the electrically conductive trace to the coaxial connector.

9. The transparent pane assembly set forth in claim 1 , wherein the coaxial connector is a FAKRA connector.

10. The transparent pane assembly set forth in claim 1 , wherein the transparent pane includes a first area and a second area adjacent to the first area, and the antenna includes a first portion spanning across the first area and a second portion spanning across the second area, and wherein the first portion is of a density that is greater than the second portion, and the feed portion is electrically connected to the first and second portions.

11. The transparent pane assembly set forth in claim 10 , wherein the antenna is coplanar with the transparent pane.

12. The transparent pane assembly set forth in claim 1 , wherein the transparent pane is a windshield.

13. The transparent pane assembly set forth in claim 1 , wherein the transparent pane is laminated safety glass including a flexible layer disposed between the first and second layers, with the antenna disposed between the flexible layer and the second layer, and wherein the first and second layers are glass layers.

14. The antenna system set forth in claim 1 , wherein a footprint of the feed portion and a footprint of the metal bonding pad are matching.

15. The antenna system set forth in claim 14 , wherein the footprint of the metal bonding pad matches a footprint of the electrically conductive trace.

16. An automotive windshield assembly comprising:
a transparent pane made at least in-part of a dielectric substrate;
an antenna encased inside the transparent pane, the antenna including an electrically conductive feed portion;
a metallic bonding pad adhered to a face of the transparent pane and aligned to the feed portion for electromagnetic coupling;
a coaxial connector; and
a printed circuit board (PCB), the PCB including opposite first and second sides, a plurality of vias extending between the first and second sides, and an electrically conductive trace carried by the second side, wherein the coaxial connector is electrically connected to the plurality of vias at the second side and the electrically conductive trace is electrically connected to and between the metallic bonding pad and the plurality of vias, and the metallic bonding pad being spaced from the electrically conductive feed portion by the dielectric substrate.

Assignees

• Gm Global Tech Operations Llc

Inventors

• Song Hyok Jae
• Schaffner James H
• Bekaryan Arthur
• Talty Timothy J
• Yasan Eray
• Carper Duane S
• Wall Walter S

Classifications

• H05K2201/10356

  Cables · CPC title

• H05K2201/09809

  Coaxial layout · CPC title

• H05K3/368

  parallel to each other (H05K3/361 takes precedence) · CPC title

• H05K1/182

  associated with components mounted in printed circuit boards [PCB], e.g. insert-mounted components [IMC] · CPC title

• H01R24/50 Primary

  mounted on a PCB [Printed Circuit Board] · CPC title